Improvement in insect-exterminators



2 Sheets--Sheet 1:.- A. B. EWING. Improvement in Insect Exterminators.

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UNITE ALVAN B. EWING, OF LEWISBURG, TENNESSEE.'

IMPROVEMENT IN INSECT-EXTERMHNATORS.

Specification forming part of Letters Patent No. 125,557, dated April 9, 1872.

To all whom t may concern:

Be it known that I, ALVAN B. EWING, of Lewisburg, in the county of Marshall and State of Tennessee, have invented a new and useful Improved Insect-Exterminator, of which the following is a specification:

My invention relates to an improved insectexterminator, which is capable of being eiiiciently employed in localities where it is desired to destroy insects; and my invention consists of a vessel in which steam is generated, and in which steam is the exterminating medium, the said vessel being provided with an injecting-tube, a steam-dome, a safety-valve, and one or more ire-chambers, all of which will hereinafter more fully be set forth.

In the drawing, Figure lis front view of the improved insect-destroyer; Fig. 2, a plan view Fig. 3, a cross-section, showing the arrangement ofthe flues Fig. 4, a detached section of the safety-valve.

A, in the drawing, represents a vessel of any suitable construction and material, in which the water is contained to be hea-ted and generated into steam. B B are lire-places or iiues, which pass vertically through the boiler, and which are provided with grates C G. Immediately below these grates is one or more openings for the purpose of creating a 'draught to aid in the combustion of the fuel with which to generate to steam. D D are 'detachable caps inclosin g the lower ends of the iiues (l C, which serve to catch and retain all ashes, 85e., which i fall through the grates. E is the dome or steamdrum of the boiler, which is provided with a tube, c, in which is a safety-valve, b, so adjusted and regulated, by means of the spiral spring c, as to allow the escape of steam through the pipe e when a surplus force accumulates. It is evident that any other suit-able valve than this Vmay be employed, but as it is simple, easily constructed, and effective, I prefer the one mentioned. F is an ejector or discharge-pipe, which projects from the top of the dome E, or directly from the boiler A, and extends down the side of the boiler, and which gradually terminates in a nozzle, J. The ejector F is for the purpose of discharging the steam into the localities infested with insects, and which it is desired to destroy. G is a discharge-cock, which, in the present instance, is arranged at the bottom of the boiler, and is for the purpose of emptying the same of the water when the apparatus is not is use. H H are handles, which are firmly or detachably secured to the ends of the boilers for the purpose of manipulatin g the apparatus. L represents a pipe havin g a funnel, m, arranged in it, which is used to supply the boiler with feed-water. The opening in .the funnel is closed by a cork, or otherwise. Instead of this particular means for supplyin g the boiler, it may be done in any other suitable and convenient manner. By passing the re-chambers vertically through the boiler there will be a large heating surface, and the water circulating around this surface will become quickly and rapidly heated, and steam generated; much more so than if the fire was.

placed underneath the boiler, though the latter may be done.

The operation of the apparatus is as follows: The boilerA is supplied with water through the medium of the supply-funnel m, or otherwise, and the fires are started. When the steam begins to genera-te it will immediately pass through the ejector F and issue from the noz- Zle d; it is then placed in the locality infested with the insects which it is desired to destroy, and thus effectually exterminate the same. It a surplus force of steam should accumulate in the boiler it will raise the valve b and pass off into the atmosphere.

The above described apparatus may be employed in households for exterminating bedbugs and other insects, and will be found very efficient and effective in its exterminating qualities. The apparatus is very simple, easily constructed, and will be found of much importance and value in all localities infested with insects.

The improved insect-destroyer may be provided with feet to prevent the iiues from touching the floor, and thus burning and injuring the carpet, &c. Y

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is- ,f

The combination oft e boiler A, steam-dome E, injecting-tube F, va ve b, and one or more iirechambers B B, all ar/ranged and operating substantially as and for the purpose set forth.

To the above I have signed my namem this 1st day of February, A. D. 1872.

ALVAN B. EWING.

Witnesses:

HENRY K. Moss, GHARLni B. BRIDGES. 

